CN1312951C - Always-on virtual private network access - Google Patents

Always-on virtual private network access Download PDF

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Publication number
CN1312951C
CN1312951C CNB038178125A CN03817812A CN1312951C CN 1312951 C CN1312951 C CN 1312951C CN B038178125 A CNB038178125 A CN B038178125A CN 03817812 A CN03817812 A CN 03817812A CN 1312951 C CN1312951 C CN 1312951C
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CN
China
Prior art keywords
application processor
data network
equipment according
suspended state
wireless data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB038178125A
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Chinese (zh)
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CN1672448A (en
Inventor
约瑟夫·彼得·罗伯特·托赛
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Sierra Wireless Inc
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Sierra Wireless Inc
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Filing date
Publication date
Application filed by Sierra Wireless Inc filed Critical Sierra Wireless Inc
Publication of CN1672448A publication Critical patent/CN1672448A/en
Application granted granted Critical
Publication of CN1312951C publication Critical patent/CN1312951C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/58—Message adaptation for wireless communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/50—Secure pairing of devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
    • H04L63/0272—Virtual private networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/04—Scheduled access
    • H04W74/06—Scheduled access using polling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

An application processor is electrically and logically decoupled from a wireless data network module so that it may go to sleep independently. A security association may be established between the wireless data network module and a wireless data network. Then the application processor may be placed in a suspend state while maintaining the security association between the wireless data network module and the wireless data network. This allows email polling, for example, to occur without having to re-establish the security association by logging in again.

Description

Uninterrupted virtual private network access
Technical field
The present invention relates to the VPN (virtual private network) field.More particularly, the present invention relates to uninterrupted virtual private network access.
Background technology
Mobile device was popularized a lot of years such as cell phone and PDA(Personal Digital Assistant).Because becoming, mobile device becomes increasingly complex, so the function quantity that they possess is also increasing.Nowadays sending and receiving e-mail is standard feature on a lot of wireless devices.Yet, begin to produce the problem of how in time receiving and dispatching irregular Email.
The way of standard is to send the Short Message Service (SMS) page or leaf to mobile device at present, and it is waken up.Email is compressed usually and is stored in the SMS page or leaf.But, because the SMS messaging content is short and small, so be difficult to the whole Email of encapsulation in a note.And SMS does not support such as SSL or IPSec class standard security protocol.In addition, the SMS compared with high-bandwidth protocols is very expensive.At last, this technology can't be generalized to 802.11b, on bluetooth or other the non-cellular protocols.
Cellular devices can be passed through poll for email.Under first kind of situation, cellular devices can periodically be waken up, and dialing enters network, sets up VPN (virtual private network) (VPN) and connects, and inquires about Email then.But, do requiring to connect authority like this.Under the situation of cellular data, doing like this will be expensive, because nearly all transmission data all are for authority, rather than user data.Under second kind of situation, cellular devices can keep VPN to connect simply always, periodically inquires about Email, and the spitting image of such such as the wireless device of computer installation class, for example, Digital Subscriber Line connects.Yet it is infeasible doing like this wireless device, because do the electric weight that will soon exhaust battery like this.
People need a solution, and wherein wireless device can overcome the defective of prior art scheme, can in time receive and dispatch non-regular Email.
Summary of the invention
A kind of application processor of separating with the wireless data network module electricity with logical separation, thus this application processor can independent dormancy.Between wireless data network module and radio data network, can set up safe the connection.Then, application processor can be placed suspended state, keep the safety between wireless data network module and the radio data network to be connected simultaneously.This makes does not need to rebulid safe connection by logining again, just can carry out for example email queries.
Description of drawings
Accompanying drawing is combined in the specification, constitutes the part of this specification, and one or more embodiment of the present invention is described, and in conjunction with describing in detail, is used to explain principle of the present invention and enforcement.
In the accompanying drawing:
Fig. 1 is a calcspar of representing VPN (virtual private network) (VPN) wireless device according to a particular embodiment of the invention.
Fig. 2 is an applicating flow chart of representing information flow according to a particular embodiment of the invention.
Fig. 3 is a flow chart of representing the method for radio data network that wireless internet appliance is connected to according to a particular embodiment of the invention, and this wireless internet appliance comprises wireless data network module and application processor.
Fig. 4 is a kind of calcspar that is used for wireless internet appliance is connected to the equipment of radio data network of representing according to a particular embodiment of the invention, and this wireless internet appliance comprises wireless data network module and application processor.
Embodiment
Below will embodiments of the invention be described from the angle of computer system, server and software.Those skilled in the art will recognize that following detailed description of the present invention only is illustrative and not restrictive.Those skilled in the art can be easy to draw other embodiments of the invention according to these disclosures.Embodiments of the present invention shown in below inciting somebody to action in detail with reference to the accompanying drawings.In institute's drawings attached and following explanation, will use identical reference number to represent same or analogous part.
For the sake of clarity, the conventional feature of execution mode described here all is not shown and describes.Certainly, can know when any this type of the actual execution mode of exploitation, must determine a large amount of embodiments to finish developer's objectives, for example meet and use and commercial relevant restriction, and these objectives be different for various execution modes and each developer.And, can also know that such development effort will be complicated and consuming time, still, to those skilled in the art, this effort remains the normal work to do on the engineering that realizes having benefit of the present invention.
According to the present invention, can use polytype operating system, computing platform, computer program and/or general-purpose machinery to realize assembly, treatment step and/or data structure.In addition, one of skill in the art will recognize that and also can use those to have the device of not too general character, for example hardwired device, field programmable gate array (FPGA), application-specific IC (ASIC) etc., this does not depart from the scope of the present invention and spirit.
Fig. 1 is the calcspar of expression according to VPN (virtual private network) (VPN) wireless device of the specific embodiment of the invention.The structure of this wireless internet appliance is used to provide uninterrupted VPN visit.In this wireless device, application processor 100 controls are connected with radio wide area network (WWAN) module 102.Be used for the standard industrial practice of global system for mobile communications (GSM) and code division multiple access (CDMA) standard implementation, WWAN module 102 is used for the emulation dialing modem.Therefore, if application processor 100 is hung up the result that will cause the WWAN data session to break by way of parenthesis because of any reason.When application processor was hung up, the WWAN module can not keep session.Although WWAN module 102 can keep start, even can wake internet, applications equipment or detection of wireless service on incoming page up, high-speed data session still can be broken when internet device is in power save mode.
In the present invention, application processor 100 is separated with WWAN module electricity and logical separation (we can say that also application processor 100 is not coupled with electric coupling of WWAN module and logic), so can independently enter dormancy.That is, application processor 100 can send its indication that will close of expression to the WWAN module.This indication can send by the signal of telecommunication, also can be used as the outer Application Protocol Data Unit of band and sends from power management subsystem, and it is about to close to signal radio modem.Persons of ordinary skill in the art will recognize that except above-mentioned particular instance can also have other modes to send indication expression application processor 100 to the WWAN module will close.
In specific embodiments of the invention, WWAN module 102 is waited for its formation to extract the request of hang-up, and request is hung up in affirmation then.Equally, can affirmation be that the signal of telecommunication also can be an APDU (application data until?).The WWAN module can also be confirmed request before extracting its request signal formation, perhaps not confirm request.
After application processor 100 is received affirmation, can not stop any session and just enter degree of depth suspended state.It should be noted that especially application processor 100 does not have to stop to be connected with the safety of vpn server, also on e-mail server, do not login.
After the hang-up, may take place to connect and remove (going beyond the scope) such as receiving IP packet (as keeping active), or network event such as Email coming message notice.In this case, the WWAN module can receive the signal from vpn server 104, and by using RING (jingle bell) signal or equivalent to wake this internet device up.When equipment had for example used the signal of telecommunication or Application Protocol Data Unit to confirm that internet device is waken up, the WWAN module can signal to the internet device of described network event, waited for that perhaps internet device inquires about described network event to radio modem.Can utilize the predetermined queries phase periodically to wake application processor up and check and accept Email from E-mail gateway 106.
By using this new performance, wireless internet appliance can connect primary network at the very start in every day, fast cycle ground inquiry new information.
Fig. 2 is the applicating flow chart of expression according to the information flow of the specific embodiment of the invention.In step 200, application processor can be asked from WWAN module request high speed data network access.In step 202, the WWAN module is connected to vpn server then, and application processor is set up safety and connected.Because this is an initial log, then in step 204, application processor can be inquired about Email.In case said process is finished, application processor can ask to enter park mode to save electric weight.Therefore in step 206, application processor can send the request of hang-up to the WWAN module.In step 208, the WWAN module can be confirmed to hang up request, and then in step 210, application processor can enter dormancy.Notice that the WWAN module is not to be in park mode, but keep being connected with vpn server.
Through the predetermined queries after date, in step 212, application processor can be waken up.In step 214, application processor can send wake request to the WWAN module.In step 216, the WWAN module can be confirmed wake request.So in step 218, application processor can be inquired about Email.In case said process is finished, application processor can ask to enter park mode once more to save electric energy.Thereby in step 220, application processor can send the request of hang-up to the WWAN module.In step 222, the WWAN module can be confirmed to hang up request, and then in step 224, application processor can enter dormancy.
Removing (connectioncleared) (going beyond the scope) such as in step 226, can take place to connect in network exception event.This can cause WWAN need rebulid safe connection for keeping with being connected of VPN.Therefore, in step 228, WWAN can send wake request to application processor subsequently, in step 230, wakes application processor up, and in step 232, confirms wake request.In step 234, application processor can rebulid session with the WWAN module then, and in step 236, rebulids safe the connection with WWAN.
If receive important email during inquiring about, this is with helpful.For example, when indicating the Email Information of " promptly ", can generate " promptly " signal from VPN and send to the WWAN module when receiving.
Fig. 3 is the flow chart of expression according to the method for radio data network that wireless internet appliance is connected to of the specific embodiment of the invention, and this wireless internet appliance comprises wireless data network module and application processor.In step 300, information sends to wireless data network module from application processor, request visit radio data network.Wireless data network module can be a radio modem.In step 302, can between wireless data network module and radio data network, set up safety and be connected.In step 304, application processor can be placed suspended state, keep being connected between wireless data network module and the radio data network simultaneously.When being in this suspended state, can calculate the inquiry phase.
In step 306, application processor can be waken up from resting state.This can take place at last in the inquiry phase, and can use the RING signal to realize.In step 308, can inquire about Email to radio data network.This can comprise the inquiry e-mail server.In step 310, application processor can be placed in suspended state once more subsequently.In step 312, if the connection failure between wireless internet appliance and the radio data network can rebulid safe connection so.In step 314, if network event takes place, remove alarm such as receiving the IP packet, connecting during inquiring about, or the Email coming message notice, can wake application processor up so.This can realize by the RING signal once more.Then, application processor can be handled network event, if safety connects loses, and this network event can comprise and rebulids safe connection.
Fig. 4 is a kind of calcspar that be used for wireless internet appliance be connected to the equipment of radio data network of expression according to the specific embodiment of the invention, and this wireless internet appliance comprises wireless data network module and application processor.Application processor wireless data network module access request sender 400 can send information to wireless data network module from application processor, request visit radio data network.Wireless data network module can be a radio modem.Radio data network safety connects builder 402 and can set up safety between wireless data network module and radio data network and be connected.Suspended state application processor placer 404 is coupled to (being connected to) radio data network safety and connects builder 402, and be coupled to (being connected to) application processor wireless data network module access request sender 400, when keeping being connected between wireless data network module and the radio data network, application processor can be placed suspended state.When being in suspended state, can calculate the inquiry phase.
Application processor is waken device 406 up and application processor can be waken up from suspended state.It is last that this can occur in the inquiry phase, and can realize by the RING signal.Radio data network email queries device 408 is coupled to (being connected to) application processor and wakes device 406 up, and is coupled to (being connected to) radio data network safety connection builder 402, can inquire about Email to radio data network.This can comprise use radio data network email queries device 410 inquiry e-mail servers.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (35)

1. method that is used for wireless internet appliance is connected to the virtual private network server, described wireless internet appliance comprises wireless data network module and application processor, described method comprises:
Setting up safety between described application processor and described virtual private network server is connected; And
Will be in memory corresponding to described application processor about the described information storage that connects safely; And
Described application processor is placed suspended state, keep described safety to connect simultaneously, wherein, described suspended state is kept at described safe link information in the memory corresponding to described application processor.
2. method according to claim 1 also comprises:
Send information to the described wireless data network module of request visit radio data network from described application processor.
3. method according to claim 1 also comprises:
When described application processor is not in described suspended state, to radio data network inquiry Email.
4. method according to claim 3, wherein, described inquiry comprises the inquiry e-mail server.
5. method according to claim 3 also comprises:
If described application processor is to be in suspended state, before described inquiry, wake described application processor so up.
6. method according to claim 3 also comprises:
Through the predetermined queries after date, before described inquiry, wake described application processor up.
7. method according to claim 1, wherein, described wireless data network module is a radio modem.
8. method according to claim 1 also comprises:
If the described connection failure between described wireless internet appliance and described virtual private network server rebulids described safety so and connects.
9. method according to claim 1 also comprises:
If the generation network event wakes described application processor so up.
10. method according to claim 9, wherein, described network event is to receive the IP packet.
11. method according to claim 9, wherein, described network event is to connect to remove alarm.
12. method according to claim 9, wherein, described network event is the Email coming message notice.
13. method according to claim 5, wherein, described waking up comprises with ringing signal and wakes described application processor up.
14. method according to claim 9, wherein, described waking up comprises with ringing signal and wakes described application processor up.
15. a wireless internet appliance comprises:
Application processor;
Wireless data network module, can be connected to described application processor communicatedly, wherein, described wireless data network module is separated with described application processor electricity, thereby described application processor can enter suspended state, and need not make described wireless data network module outage, simultaneously safe link information is remained in the memory corresponding to described application processor.
16. wireless internet appliance according to claim 15, wherein, described wireless data network module is a radio modem.
17. one kind is connected to the equipment of virtual private network server with wireless internet appliance, described wireless internet appliance comprises wireless data network module and application processor, and described equipment comprises:
Radio data network safety connects builder; And
Suspended state application processor placer is coupled to described radio data network safety and connects builder.
18. equipment according to claim 17 also comprises:
The application processor wireless data network module access request sender is coupled to described suspended state application processor device is set.
19. equipment according to claim 17 also comprises:
Radio data network email queries device is coupled to described radio data network safety and connects builder.
20. equipment according to claim 19 also comprises:
Application processor is waken device up, is coupled to described radio data network electronics
The E-mail inquiries device.
21. equipment according to claim 19 also comprises:
The application processor inquiry phase is waken device up, is coupled to described radio data network email queries device.
22. an equipment that is used for wireless internet appliance is connected to the virtual private network server, described wireless internet appliance comprises wireless data network module and application processor, and described equipment comprises:
Be used between described application processor and described virtual private network server, setting up the device that safety is connected; And
Be used for the information storage that will connect about described safety to device corresponding to the memory of described application processor; And
Be used for described application processor is placed suspended state, the device that keeps described safety to connect simultaneously, wherein, described suspended state remains on described safe link information in the described memory corresponding to described application processor.
23. equipment according to claim 22 also comprises:
Be used for sending a message to the device of the described wireless data network module of request visit radio data network from described application processor.
24. equipment according to claim 22 also comprises:
Inquiry unit is used for not inquiring about Email to radio data network when described application processor is in described suspended state.
25. equipment according to claim 24, wherein, described inquiry unit comprises the device that is used to inquire about e-mail server.
26. equipment according to claim 24 also comprises:
Rouser is used for when described application processor is in suspended state, wakes described application processor before described inquiry up.
27. equipment according to claim 24 also comprises:
Rouser is used for waking described application processor up through the predetermined queries after date before described inquiry.
28. equipment according to claim 22, wherein, described wireless data network module is a radio modem.
29. equipment according to claim 22 rebulids the device that described safety is connected when also comprising the described connection failure that is used between described wireless internet appliance and described virtual private network server.
30. equipment according to claim 29 also comprises Rouser, is used for waking up when network event takes place described application processor.
31. equipment according to claim 30, wherein, described network event is to receive the IP packet.
32. equipment according to claim 30, wherein, described network event is to connect to remove alarm.
33. equipment according to claim 30, wherein, described network event is the Email coming message notice.
34. equipment according to claim 26, wherein, described Rouser comprises the device that wakes described application processor with ringing signal up.
35. equipment according to claim 30, wherein, described Rouser comprises the device that wakes application processor with ringing signal up.
CNB038178125A 2002-07-26 2003-07-25 Always-on virtual private network access Expired - Fee Related CN1312951C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/206,681 2002-07-26
US10/206,681 US8707406B2 (en) 2002-07-26 2002-07-26 Always-on virtual private network access

Publications (2)

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CN1672448A CN1672448A (en) 2005-09-21
CN1312951C true CN1312951C (en) 2007-04-25

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US (1) US8707406B2 (en)
EP (1) EP1525766B1 (en)
CN (1) CN1312951C (en)
AU (1) AU2003254656A1 (en)
CA (1) CA2492762A1 (en)
HK (1) HK1083579A1 (en)
WO (1) WO2004012472A1 (en)

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